Figure 3. Effects of DBP and MBP exposure on mRNA expression of TRβ (panel A), RXRγ (panel B), TSHα (panel C) and TSHβ (panel D) in head tissue of tadpoles reached stage 57.

Treatment with 0.005% DMSO served as a solvent control. TRβ, RXRγ, TSHα and TSHβ values were normalized by gapdh values, and results were expressed relative to the control. Data are shown as mean ± SD (n = 3 tadpoles per treatment group). Asterisks denote significant differences from controls (P<0.05).